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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2009, Vol. 28 ›› Issue (1): 90-94.DOI: 10.3969/j.issn.1674-0696.2009.01.24

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土钉加固高液限土路堑边坡的支护参数优化

吴国雄,郭国和,辛恕杰   

  1. 重庆交通大学土木建筑学院,重庆400074
  • 收稿日期:2008-05-27 修回日期:2008-07-27 出版日期:2009-02-15 发布日期:2015-04-15
  • 作者简介:吴国雄(1966—),男,湖北崇阳人,教授,博士生导师,主要从事道路与铁道工程教学、研究工作。E-mail:wgx_ph.d@163.com。
  • 基金资助:
    重庆交通委员会科技项目( 2006)

Optimization of Support ing Parameters for Treating H igh L iquid L imit Soil Slope by SoilNails

WU Guo-xiong,GUO Guo-he,XIN Shu-jie   

  1. School of Civil Engineering ＆ Architecture, Chongqing Jiaotong University, Chongqing 400074, China
  • Received:2008-05-27 Revised:2008-07-27 Online:2009-02-15 Published:2015-04-15

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摘要： 土钉支护已广泛应用于边坡工程,但至今对土钉支护参数的选取尚无规范可依。基于有限差分法软件 FLAC,利用正交试验设计进行数值模拟,得到一定坡高土钉支护参数的合理取值范围,并选取典型工点对土钉的 支护效果进行稳定性评价,对比处治前后边坡的安全系数及最大水平位移,结果表明,在正交试验基础上选取合理 的土钉支护参数,边坡的稳定性大大提高。计算结果可为土钉支护定量化设计提供参考。

关键词: 土钉支护, 正交试验, 数值模拟, 支护参数优选

Abstract: Soil nailing has been widely used in slope engineering, but so far there are no norms that the soil nailing parameter selection carl conform to. Based on the finite difference method FLAC software, orthogonal design for numerical simulation is used to get a reasonable range of soil nailing parameters under a certain slope height, and the example of typical soil nailing is selected to evaluate the supporting effect, and then the slope safety coefficient and the largest horizontal displacement before and after＇ treatment are compared. The test results show that slope stability has been greatly increased by selecting the reasonable supporting parameters of soil nailing based on the orthogonal test. The results of soil nailing can be used as references for quantitative design of soil nailing.

Key words: soil nailing , orthogonal test , numerical simulation , supporting parameter optimization ;

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